As a CEO in the game MWWA5 I had put in a bid to take owner of another promotion and once I accepted the position the WMMMA5 had a little message pop up saying Run Time Error "3021"
Any ideas why it does this or how I can eliminate the problem?
Any one else having this problem or had this problem?

You need to say which version of WMMA5 - i.e. 1.00, 1.01, 1.02, etc. It's written in the taskbar on the opening screen of the game. If you're not using 1.15 then you're out of date and need to upgrade as this issue would likely be sorted as a result.